Abstract
Humification of organic matter in the soil plays many parts. Classical chemical fractionation of soil organic matter differentiates between different kinds of soil but throws no light on the effects of husbandry within any one soil type. Therefore, to evaluate the quality of the soil organic matter in an arable chernozem, we have applied indices of the water-soluble and alkali-soluble fractions of soil organic matter, coefficient of extinction and C:N ratio. Results indicate that, under arable, an insufficient supply of fresh organic matter is contributing to the progressive loss of humus, leaching of the water-soluble fraction and other negative consequences.
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Notes
- 1.
Research is needed to further establish the agronomic significance of the ratio of soluble and mobile humic substances in the total amount of extracted organic components, e.g. in respect of the availability of nitrogen for crops.
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Boincean, B.P., Bulat, L.I., Bugaciuc, M.A., Cebotari, M., Cuzeac, V.V. (2014). Quality of Soil Organic Matter Under Crop Rotations and Continuous Cultures. In: Dent, D. (eds) Soil as World Heritage. Springer, Dordrecht. https://doi.org/10.1007/978-94-007-6187-2_23
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DOI: https://doi.org/10.1007/978-94-007-6187-2_23
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